Some ships are more leaky than others, just like some companies are more leaky than others. NVIDIA, at least with the Kepler launch, has been one of the more leaky companies of late. Pictures and benchmarks of the GTX 680 were surfacing weeks before the product launched and it seems like the same is holding true for the GTX 670.
That picture above is claimed to be the upcoming GTX 670. Accurate specifications such as CUDA core count, frequency, etc are still unknown. Based upon the picture, the GTX 670 will still require two 6-pin PCIe power connectors, which seems a bit excessive. It also features two SLI connectors. The board itself is small, but still appears to use a dual-slot cooler.
The new card produces some respectable numbers in both 3DMark Vantage and 3DMark 11. The leaked benchmarks show the GTX 670, GTX 670 OC, GTX 570 OC, and HD 7950. Vantage performance sees the 670 earn 29471 whereas the 7950 earns only a paltry 24035. Moving to 3DMark 11, the 670 earns 7353 and the 7950 gets only 6418.